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| Titel |
A case study of the Streitishvarf composite dyke: Implications for magma mixing and mingling in Iceland |
| VerfasserIn |
Robert Askew, Thorvaldur Thordarson  , Godfrey Fitton |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250111202
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| Publikation (Nr.) |
 EGU/EGU2015-11291.pdf |
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| Zusammenfassung |
| We present a study carried out on the 10.7(±0.2) My old Streitishvarf composite dyke in East
Iceland. The 26m wide dyke features eastern (5.5 m-thick) and western (4.5 m-thick)
dolerite margins and a 7.5 m thick felsic core, separated by distinct hybrid zones
(3 m-thick). The dyke margins exhibits the most primitive composition: 50.7 %
SiO2, 6.1 % MgO, 12.4 % FeOt and 0.4% K2O. It is a dolerite containing |
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